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1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "IPCStreamOperatorCallback_fuzzer.h"
17 #include "fuzz_base.h"
18 
19 #include <cstddef>
20 #include <cstdint>
21 
22 class IPCStreamOperatorCallbackFuzzer : public StreamOperatorCallbackStub {
23 public:
OnCaptureStarted(int32_t captureId,const std::vector<int32_t> & streamIds)24     virtual void OnCaptureStarted(int32_t captureId, const std::vector<int32_t> &streamIds) override {}
OnCaptureEnded(int32_t captureId,const std::vector<std::shared_ptr<CaptureEndedInfo>> & infos)25     virtual void OnCaptureEnded(int32_t captureId,
26         const std::vector<std::shared_ptr<CaptureEndedInfo>> &infos) override {}
OnCaptureError(int32_t captureId,const std::vector<std::shared_ptr<CaptureErrorInfo>> & infos)27     virtual void OnCaptureError(int32_t captureId,
28         const std::vector<std::shared_ptr<CaptureErrorInfo>> &infos) override {}
OnFrameShutter(int32_t captureId,const std::vector<int32_t> & streamIds,uint64_t timestamp)29     virtual void OnFrameShutter(int32_t captureId,
30         const std::vector<int32_t> &streamIds, uint64_t timestamp) override {}
31 };
32 
U32_AT(const uint8_t * ptr)33 static uint32_t U32_AT(const uint8_t *ptr)
34 {
35     return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
36 }
37 
onRemoteRequest(uint32_t code,MessageParcel & data)38 static int32_t onRemoteRequest(uint32_t code, MessageParcel &data)
39 {
40     MessageParcel reply;
41     MessageOption option;
42     IPCStreamOperatorCallbackFuzzer IPCStreamSerCall;
43     auto ret = IPCStreamSerCall.OnRemoteRequest(code, data, reply, option);
44     return ret;
45 }
46 
fuzzAccountService(const uint8_t * data,size_t size)47 static void fuzzAccountService(const uint8_t *data, size_t size)
48 {
49     MessageParcel reply;
50     MessageOption option;
51     MessageParcel dataMessageParcel;
52     if (size > sizeof(uint32_t)) {
53         uint32_t code = U32_AT(data);
54         data = data + sizeof(uint32_t);
55         size = size - sizeof(uint32_t);
56         dataMessageParcel.WriteInterfaceToken(StreamOperatorCallbackStub::GetDescriptor());
57         dataMessageParcel.WriteBuffer(data, size);
58         dataMessageParcel.RewindRead(0);
59         onRemoteRequest(code, dataMessageParcel);
60     }
61 }
62 
OnRemoteRequestFunc(const uint8_t * data,size_t size)63 static void OnRemoteRequestFunc(const uint8_t *data, size_t size)
64 {
65     fuzzAccountService(data, size);
66 }
67 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)68 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
69 {
70     OnRemoteRequestFunc(data, size);
71     return 0;
72 }